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Derivative Activities - Effects of Non-Hedge Derivatives on Consolidated Statement of Operations (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Derivative Financial Instruments [Line Items] |  |
Gain (Loss) Recognized in Income (Non-hedge Derivatives) | $ 122,839 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet | $ (146,850)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
Derivative Fair Value Income (Loss) | 122,839 us-gaap_DerivativeGainLossOnDerivativeNet | (146,850)us-gaap_DerivativeGainLossOnDerivativeNet
Swaps |  |
Derivative Financial Instruments [Line Items] |  |
Gain (Loss) Recognized in Income (Non-hedge Derivatives) | 125,777 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember | (44,073)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember
Derivative Fair Value Income (Loss) | 125,777 us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember | (44,073)us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeByNatureAxis = us-gaap_SwapMember
Collars |  |
Derivative Financial Instruments [Line Items] |  |
Gain (Loss) Recognized in Income (Non-hedge Derivatives) | 8,415 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember | (39,148)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember
Derivative Fair Value Income (Loss) | 8,415 us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember | (39,148)us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeByNatureAxis = rrc_CollarsMember
Basis Swaps |  |
Derivative Financial Instruments [Line Items] |  |
Gain (Loss) Recognized in Income (Non-hedge Derivatives) | (11,353)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember | (63,629)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember
Derivative Fair Value Income (Loss) | $ (11,353)us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember | $ (63,629)us-gaap_DerivativeGainLossOnDerivativeNet / us-gaap_DerivativeByNatureAxis = us-gaap_BasisSwapMember

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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